A growing body of evidence, including research presented here Sunday, shows that eating enough fish, chicken, lean meat, low-fat dairy, beans, nuts or other protein-rich foods helps people feel full longer. And scientists are searching for the biological reasons for the increased satiety.

Call it the supersizing of Americans. As portions have grown larger over the past 40 years, so have people in the USA, says Lisa Young, a nutrition researcher at New York University who has studied the trend she calls "portion creep."

Geraldo Rivera, who has been a war correspondent and host of his own weekend show on Fox News Channel, said Tuesday he had signed a four-year contract to stay at the network. He divulged very little about the deal except to say he "got a promotion."

This week, investigators from the U.S. Secret Service are meeting with Latin American officials to discuss the appearance of high-quality counterfeit $100 bills in the region. First detected last week, banks in Ecuador, Peru, Chile, Uruguay, and here in Bolivia have since been alerted to the possibility of counterfeit dollars in their money supply.

USA TODAY visited Morrad and three friends to see how new digital music players aimed at consumers just like them would fare. The verdict: Apple's sleek iPod and its pint-sized Mini sibling were clear winners, although the teens loved the whole category.

Pockets of superheated gas several times the size of Earth have been discovered swirling like bathtub drains high above the planet. The vortices seem to suck high-energy particles from the Sun into Earth's otherwise protective magnetic shield. The finding should help solve a longstanding mystery.